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The 1 cm spaced grid indicates a near focus focal length of around 6cm. Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies. In this, distances vary for individuals from the far point —the maximum distance from the eye for which a clear image of ...
The accommodation reflex (or accommodation-convergence reflex) is a reflex action of the eye, in response to focusing on a near object, then looking at a distant object (and vice versa), comprising coordinated changes in vergence, lens shape ( accommodation) and pupil size. It is dependent on cranial nerve II ( afferent limb of reflex ...
Spasm of accommodation. A spasm of accommodation (also known as a ciliary spasm, an accommodation, or accommodative spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normal accommodation allows the eye to "accommodate" for near-vision. However, in a state of perpetual contraction, the ...
Vergence-accommodation conflict ( VAC ), also known as accommodation-vergence conflict, is a visual phenomenon that occurs when the brain receives mismatching cues between vergence and accommodation of the eye. This commonly occurs in virtual reality devices, augmented reality devices, 3D movies, and other types of stereoscopic displays and ...
The political world has diluted the meanings of words and phrases so effectively (and, in some cases, done a full gaslight on phrases like “fake news”) that it has blunted the impact of some ...
The amplitude of accommodation is the maximum potential increase in optical power that an eye can achieve in adjusting its focus. It refers to a certain range of object distances for which the retinal image is as sharply focused as possible. Amplitude of accommodation is measured during routine eye-examination.
Accommodationism in the United States is a judicial interpretation of accommodationism which espouses that "the government may support or endorse religious establishments as long as it treats all religions equally and does not show preferential treatment." [1] Accommodationists espouse the view that "religious individuals, and/or religious ...
Meghan Markle may have just announced a brand-new lifestyle brand, but that doesn’t mean she’s turned her back on a potential dip into politics.. The Duchess of Sussex, 42, has long been ...